Respuesta :

Answer:  Assuming "2- (2 + 10(-1) : 2) + 1]" is actually:

2- (2 + 10(-1/2) + 1)

Step-by-step explanation:

Use PEDMAS (Parentheses, Exponent, Divide/Multiply, Add/Subtract)

P:  2- (2 - 5 + 1)

    2- 2 +5 - 1

A/S:  4